Dr. Sagar Hosangadi Prutvi

Sundgaualle 58

Wohnung Nr: 58-00-04

Freiburg - 79110

Germany

(+49) 15560-218813

Interests

Multi disciplinary engineering , Research & Development , Modeling & simulations , Data science & coding

Skills

Research and Development: Rapid Prototyping, Scanning Electron Microscopy, Atomic Force Microscopy, Vacuum systems like thermal evaporator & plasming ashing, Screen printing, Analog circuits designing, Instrumentations, All workshop and machine shop tools, wet and electronic table experimentations

Data Science: Python, AWS sagemaker & canvas, Orange, Keras, SciKit learn, Pandas, Seaborn, numpy, Git/GitHub

Scripting languages: Matlab, Mathematica, C++

3D modeling tools: Pro-E & Creo, Solidworks, AutoCAD, Catia

Simulation tools: COMSOL Multiphysics, Ansys, Ansa, LS-Dyna, LT-spice, Hypermesh, LAMMPS

Education

Universität Freiburg (Germany)

Post Doctorate Researcher, Frequency tunable triboelectric energy harvester

Final Grade: N.A.

2024 - Present

Indian Institute of Technology Bombay (India)

Ph.D. Research Scholar, Triboelectric effect driven self powered vibration sensors and wind energy harvesting for enabling industry 4.0

Final Grade: 8.6 CGPA

2016 - 2022

National Institute of Technology Karnataka, Surathkal (India)

M.Tech., Nanotechnology

Final Grade: 9.5 CGPA

2013 - 2015

Dr. Ambedkar Institute of Technology Bengaluru (India)

B.E., Mechanical Engineering

Final Grade: 71.8 %

2007 - 2011

Work

Data & Analytics Specialist, Swiss Re

Worked as an A.V.P. to implement Data science initiatives for process improvements

  • Generating analytical & data science solutions to enhance processes and guide business decisions.
  • Designed and developed an end-to-end client ranking solution to automate the auditing process.

Dec, 2023 - Apr, 2024

Data Scientist, Halliburton

Executive in Data Science Services group

  • Developing various Machine learning models (Regression/classification/NLP/anamoly detection/failure prediction).
  • Designing and optimizing High level architecture for ML model development, deployment and consumption.
  • Supporting company outreach activities by preparing technical abstracts for conferences.
  • Translating business needs into Data Science problem statements.

Jun, 2021 - Aug, 2023

Senior Structural Analyst (consulting), Gorgonian Technologies

Translated the designers idea into an engineered product

  • Majorly contributed to the designing of small-scale wind turbine (Zeintein).
  • Understanding the mechanism and their kinetics.
  • Translating rough sketches into CAD models for engineering analysis.
  • Complete ownership of small scale wind turbines.

Jun, 2019 - Jun, 2021

Consulting Mechanical Engineer, Aumeesh Technologies

Technical analysis for a leg prosthetic

  • Created pivotal documents for fund raising and outreach activities.
  • Performed GAIT analysis, static, dynamic and failure analysis of KAFO (knee Foot Ankle Orthosis).
  • Actively involved in design optimization by utilizing DFx concepts (manufacturability, assembly and end-use).

Feb, 2019 - Feb, 2020

Mechanical (CAD) Engineer, HCL technologies

Here, my majority of the responsibilities were:

  • Providing CAD Support in the product development activities of Ion Implanters (client: Varian Semiconductor Equipments).
  • Creating engineering drawings for sheetmetal parts, solid parts and electrical harnesses.
  • Electrical harness were major area of focus, where i took complete ownership of schematic drawing, routing path optimization, wiring optimization and developing final flatboard drawings for final assembly.

Sep, 2011 - Aug, 2013

Professional Certificates

Generative AI fundamentals

80855880

Databricks

2023

NLP - Natural Language Processing with Python

ude.my/UC-e127fc79-def3-49ad-beac-4534619aaf04

Udemy

2022

Python for Time Series Data Analysis

UC-cda41e68-2391-462f-a6e2-416c99dbe01d

Udemy

2022

Python for Data Science and Machine learning bootcamp

UC-de6f4fd2-f47e-468c-8de7-ae172ff05fb2

Udemy

2021

Publications

Main publications

Self-powering vibration sensor based on a cantilever system with a single-electrode mode triboelectric nanogenerator

Sagar Hosangadi Prutvi, Mallikarjuna Korrapati, and Dipti Gupta*

Measurement Science and Technology 33 (7), 075115 (2022)

https://doi.org/10.1088/1361-6501/ac5b2b

2022

Triboelectric effect based self-powered compact vibration sensor for predictive maintenance of industrial machineries

Hosangadi Prutvi Sagar, Sunil Meti, Udaya K Bhat, and Dipti Gupta*

Measurement Science and Technology 32 (9), 095119 (2021)

https://doi.org/10.1088/1361-6501/abe6d2

2021

Transient dynamic distributed strain sensing using photonic crystal waveguides

Hosangadi Prutvi Sagar, Vignesh Mahalingam, Debiprosad Roy Mahapatra*, Gopalkrishna Hegde, Sathyanarayana Hanagud, and Mohammad Rizwanur Rahman

Applied Optics 56 (28), 7877-7885 (2017)

https://doi.org/10.1364/AO.56.007877

2017

Co-authored publications

Rapid one step fabrication of hydrophilic hierarchical porous PDMS with negative piezopermittivity for sensing and energy storage applications

Chithra Parameswaran, Raghvendra Pratap Chaudhary, Sagar Hosangadi Prutvi, and Dipti Gupta*

ACS Applied Polymer Materials 4 (3), 2047-2056 (2022)

https://doi.org/10.1021/acsapm.1c00593

2022

Assessment of triboelectricity in colossal-surface-area-lanthanum oxide nanocrystals synthesized via low-temperature hydrothermal process

Sunil Meti, Hosangadi Prutvi Sagar, Mohammad Rizwanur Rahman, and K. Udaya Bhat*

Journal of Materials Science: Materials in Electronics 32, 20351-20361 (2021)

https://doi.org/10.1007/s10854-021-06545-7

2021

Newly developed thermoplastic polyolefin encapsulant–A potential candidate for crystalline silicon photovoltaic modules encapsulation

Baloji Adothu, Parth Bhatt, Shashwata Chattopadhyay, Sarita Zele, Jeroen Oderkerk, H.P. Sagar, Francis Reny Costa, and Sudhanshu Mallick*

Solar Energy 194, 581-588 (2019)

https://doi.org/10.1016/j.solener.2019.11.018

2019

A single step unique microstructural growth of porous colossal dielectric constant titanium oxide

Sunil Meti, Sagar Prutvi Hosangadi, M.R. Rahman, and Udaya K. Bhat*

Applied Physics A 125, 1-10 (2019)

https://doi.org/10.1007/s00339-019-2477-0

2019

Efficient light trapping and interface engineering for performance enhancement in PTB7-Th: PC70BM organic solar cells

Kunal Borse, Ramakanth Sharma, H.P. Sagar, P. Anil Reddy, Dipti Gupta, and Aswani Yella*

Organic Electronics 41, 280-286 (2017)

https://doi.org/10.1016/j.orgel.2016.11.016

2017

Conference & Symposiums

Triboelectric effect based self-powered vibration sensor

Sagar H P, Dipti Gupta

RPG 2020 , RPG house, Goenka groups (poster presentation and demonstration)

2020

Triboelectric effect-based pedometer

Sagar H P, Dipti Gupta

TechConnect 2019-20 ,IIT Bombay, (poster presentation and demonstration)

2020

Design and development of Triboelectric effectbased wind energy harvester

Sagar H P, Dipti Gupta

TechConnect 2018-19 ,TCTD project, IIT Bombay, (poster presentation and demonstration)

2019

MIT Tata Centre Annual Symposium Boston, USA, (participation)

2018

Design and development of Triboelectric effectbased wind energy harvester

Sagar H P, Dipti Gupta

Tata Centre for Technology and Design (TCTD) 3rd annual symposium IIT Bombay, (poster presentation and demonstration)

2018

Design and development of Triboelectric effect-based wind energy harvester

Sagar H P, Mohammad Ali khan and Dr. Dipti Gupta,

Tata Centre for Technology and Design (TCTD) 2nd annual symposium IIT Bombay, (poster presentation)

2018

Graphene Integrated Waveguide for Molecular Sensing

Sagar H P, MR Rahman,

International Engineering Symposium (IES) - 2015, Kumamoto University, Kumamoto, Japan

2015

References

Available upon request